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  1. Milcommoguy

    m998 Solenoid Wire ( 74A ) Hot All The Time

    OH BOY... A quick free guess . By chance do you have the SRS "STOP-RUN-START' switch wired wrong. You are using this switch ? Here's a picture to help. Note switch ribs on molded parts and maybe label B 4 BATTERY.....R 4 RUN..... S 4 START. 11 A lead should have ribs on it too. Mc Ribs...
  2. Milcommoguy

    m998 Solenoid Wire ( 74A ) Hot All The Time

    Jumping right in... again :jumpin: A little deeper dive into this. I see your 4 post and last reference to a like problem was 2019. Not all problems generally are the same to be "shotgun" fixes... but the info surrounding them could be a clue. Research is golden. 🎓 Breaking it down...
  3. Milcommoguy

    Humvee won’t start after steep hill

    That's true on the CUCV's too. Solenoid control. Guess pink the new #54. You getting this Ken., CAMO
  4. Milcommoguy

    Humvee won’t start after steep hill

    Pink wire is the color Ford uses on fuel pumps...most of the time. Or it could be Barbie's rig, CAMO
  5. Milcommoguy

    m998 Solenoid Wire ( 74A ) Hot All The Time

    It's a little hard to trouble shoot over the internet not knowing one's skill set and tests made. This is a very simple one wire circuit to engage solenoid. All I can offer up... AND I think you're up to it... is double check the single wire lead 74A and follow it from starter solenoid back to...
  6. Milcommoguy

    m998 Solenoid Wire ( 74A ) Hot All The Time

    Alternatively might be a PCB issue. Depending on the model, manufacture... there is a slave relay driving the starter solenoid lead 74. Might be welded close? Might be time to get a new box, CAMO
  7. Milcommoguy

    HMMWV Control Box issue - temperature affects starter engaging

    YES it does. Have reports of - 28 F without heater. Allow it to warm up for a bit before racing off. Strong batteries and the best box, CAMO
  8. Milcommoguy

    HMMWV Control Box issue - temperature affects starter engaging

    I have TOO. Eight years the original and still going strong, CAMO
  9. Milcommoguy

    Can’t find any info on a switch present on my Humvee

    My guess... the switch, bracket and location is not a factory option, as in not seen before on trucks. Yes the switch is something one might dig up in a motor pool, found in the junk box with bracket or bits and prices put together. IF someone went to the trouble to tag the wires and followed...
  10. Milcommoguy

    M998 Air Filter part no longer available

    Might be easier to just make one. Idea :unsure: .... locate one of those foam like floor mats that interlock like a puzzle. Or cut out a piece of the boss's yoga mat. Make a template and get busy with a sharp knife. Hide knife when done. Comes in all colors to be pro-noun correct, CAMO
  11. Milcommoguy

    how to detect a broken CDR-Valve?

    One quart in 1000 miles... I would think that is a LOT going up in smoke, out the tail pipe or on the ground. 10K miles on a new ??? engine is not even broke in, so maybe, but does seem excessive. I not sure one can believe any Humv odometer, unless one had the new engine and installed the...
  12. Milcommoguy

    [Q] Wait Light - ground switched?

    Here's what I see / hear going on.... Looking close at the two photo, You have the later engine harness clamped up under the windshield. Noting the three 8 gauge wires on the rear connector. Looks like someone had an old LAU box, an 8 wire glow harness, a big hole saw, some white ty-raps and...
  13. Milcommoguy

    [Q] Wait Light - ground switched?

    AND to add... The only thing good about the LAU box is when we scrap them getting 37 cents more for the nice aluminium deep drawn box and heat sink. Still junk, CAMO :-(👎 Not the one you want
  14. Milcommoguy

    [Q] Wait Light - ground switched?

    A little help from the nose bleed section..... That box is dinosaur old . Uses a separate glow plug connector in the engine bay. Two on top, yes? All controllers (boxes) provide a ground (logic low) to illuminate the WAIT led , so you're right there. Might be time to move forward 30 years...
  15. Milcommoguy

    Transfer case shifting and BTM

    It's NO joke. Human kind is loosing it's mind / memory. Is it just us old farts with HumV's ?? OR is it just all the good librarian's have been put out of work due to a google, an app, a forum? I'am not sure BUT I see it over and over here. Not saying it is not OK to ask. If one doesn't...
  16. Milcommoguy

    OUT AND ABOUT WITH MY HMMWV

    MISSION ..... ESCORT THE WALL... Nov. 7, 2023 Here in the Mojave Desert we have a scaled down version of the Vietnam Memorial Wall. This morning Palmdale Sheriff’s Station had the privilege of escorting the Mobile Vietnam Memorial Wall from Palmdale to the Los Angeles county line, where...
  17. Milcommoguy

    [Q] 60 AMP to 200 AMP Gen upgrade on M998

    Old feeble newbee from a desert rat here, LOL. Throwing this out there... The 60 Amp alternator have an voltage adjustment. Easy to get at and set. 200 amp units do not. WAIT LED is supplied wth 24 volts and is controlled by the not so "smart control box". It provides a logic ground (pulls...
  18. Milcommoguy

    EESS PCB replacement for the HMMWV ?

    :unsure: If all 8 plugs fail... Likely not going to start. LED's are a bright idea, CAMO
  19. Milcommoguy

    What's the precise width of the military brushguard?

    Those numbers could be a bit off, do to the temperature coefficient at time of measurement and gravitational pull half way around the globe. Then again...everything is bigger in TEXAS, CAMO
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